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YD/T 1289.1-2003 Active
YD/T 1289.1-2003 Synchronous Digital Hierarchy (SDH) transport network management system technical specification part 1:basic principle
General Product Information
| Document Type | Industry standards-Postal and telecommunications |
|---|---|
| Standard Status | Active |
| Standard Code | YD/T 1289.1-2003 |
| CCS | Communications network technology system |
| ICS | \n Transmission system |
| Implement Date | 2003-09-05 |
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